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All Journal Komunikasi Fisika Indonesia Abdimasku : Jurnal Pengabdian Masyarakat
Edward, Sharon Gracia
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Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences

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Sosialisasi Prinsip Komunikasi pada Sistem Saraf di SMA Kristen Menara Tirza Illya, Gregoria; Samaliwu, Evelin Trivena; Edward, Sharon Gracia
ABDIMASKU : JURNAL PENGABDIAN MASYARAKAT Vol 7, No 2 (2024): MEI 2024
Publisher : LPPM UNIVERSITAS DIAN NUSWANTORO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62411/ja.v7i2.2011

Abstract

Pengabdian kepada Masyarakat ini bertujuan untuk memberikan pemahaman lebih dalam mengenai prinsip komunikasi pada sistem saraf kepada siswa SMA dengan menggunakan alat peraga yang telah dibuat oleh tim pengabdian masyarakat program studi Fisika Universitas Matana. Penekanan diberikan pada pemahaman transmisi sinyal, saluran ion yang membuka dan menutup, serta terjadinya potensial aksi pada sel saraf. Berdasarkan hasil evaluasi, nilai rata-rata ujian akhir para siswa-siswi mengalami peningkatan sebesar 4,87% dibandingkan nilai rata-rata ujian awal, yang berarti cukup baik mengingat para siswa-siswi belum pernah menerima materi mengenai komunikasi pada sistem saraf dalam pembelajaran di sekolah. Selain peningkatan pemahaman, siswa-siswi menyatakan bahwa materi yang disampaikan oleh tim bermanfaat serta sesuai dengan harapan dan kebutuhan.
Literature study on the evaluation of lead apron thickness in radiology service units Edward, Sharon Gracia
Indonesian Physics Communication Vol 22, No 2 (2025)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.22.2.61-66

Abstract

Radiation protection is an effort that can be undertaken to reduce the dangers of radiation. The ALARA principle of radiation protection is needed to minimize the radiation exposure received by workers based on three components: exposure time, distance, and the use of protective equipment. Therefore, an analysis of the effectiveness of lead aprons in protecting workers from radiation exposure is conducted. The method employed involves conducting a literature review on three journals discussing the effectiveness of lead aprons in protecting workers from radiation exposure based on varying apron thicknesses and exposure factors. At 100 kVp tube voltage, a lead apron with 0.25 mmPb thickness and exposure time of 100 mAs has an effectiveness of 25% (15 years old) and 98.1% (3 years old), while a thickness of 0.35 mmPb with an exposure time of 5 mAs has an effectiveness of 93%. At 70 kVp tube voltage, a lead apron of 0.35 mmPb thickness with an exposure time of 5 mAs has an effectiveness of 98.4%. A 0.5 mmPb lead apron with exposure times ranging from 20 mAs to 72 mAs has an effectiveness between 93.75% and 99.219%. The effectiveness of a lead apron is influenced by tube voltage, exposure time, age, and quality of the lead apron. A thick apron does not necessarily have high effectiveness in protecting workers if it has poor quality, and vice versa.
Co-Authors Illya, Gregoria Samaliwu, Evelin Trivena